Bar of soap



FIG. 1 is a top perspective view of a bar of soap showing my new design;

FIG. 2 is a bottom perspective view thereof;

FIG. 3 is a side elevational view on a reduced scale, the undisclosed opposite side appearing the same; and,

FIG. 4 is a top plan view thereof. 

The ornamental design for a bar of soap, as shown and described. 